It may help to identify the reading level of the ideal reader of your book. You can determine the reading level based on the grade level of your ideal reader. If you account for ESL readers, you should aim for a grade 6 or 7 reading level. If you are writing for a higher education audience, you may write at a grade 8 or 9 level. You can use the Hemingway app to determine the reading level of your draft, or other online reading level tools.
The inciting incident is the pivotal moment in your story, where you realized your desire line. It could be a seemingly small moment, such as a brief fight with your mother, that becomes a major moment or inciting incident in your story. For example, your brief fight with your mother could be the last time you speak to her before she passes away and leaves you letters about her life in Poland. Think of the ah ha moment in your story when you realized what you wanted in your life, or where you realized you were wrong about your assumptions about a specific moment or event.
Develop a central theme, main idea or thesis that clearly explains the purpose behind your autobiography. For example, your theme might be about how you overcame obstacles to become a stronger person, or it might explain why a particular passion -- such as mountain climbing or rescuing animals -- is so important to you. Back your theme with details and background information about your life experiences. For example, you might explain that your dad is in the military, so you've had to learn how to adapt quickly to new schools and unfamiliar environments. Or, you might discuss what it was like growing up in a poor, single-parent home, but how your family was always willing to take in injured or stray pets.